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February 2024

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LedgerSMB 1.10.31 released
by Erik Huelsmann 02 Feb '24

02 Feb '24

The LedgerSMB development team is happy to announce yet another new version of its open source ERP and accounting application. This release contains the fix for security vulnerability CVE-2024-23831 which allows an attacker to create a user by tricking a setup.pl admin into clicking on a specifically crafted link. See more about this CVE on https://ledgersmb.org/cve-2024-23831-setup-csrf. Changelog for 1.10.31 * Fix GL transaction entry regressed from 1.10.29 (#7984) Changelog for 1.10.30 * Add missing batch and entity sequences to the Defaults screen (#7965) * Stop warning during startup without configuration file (#7928) * CVE-2024-23831: CSRF attack on 'setup.pl' For installation instructions and system requirements, see https://github.com/ledgersmb/LedgerSMB/blob/1.10.31/README.md The release can be downloaded from our download site at https://download.ledgersmb.org/f/Releases/1.10.31 The release can be downloaded from GitHub at https://github.com/ledgersmb/LedgerSMB/releases/tag/1.10.31 Docker images have been published for ARMv7 (32-bit), ARM64 (also known as ARMv8, e.g. RPi 3+) and AMD64. These can be pulled from the GitHub Container Registry $ docker pull ghcr.io/ledgersmb/ledgersmb:1.10.31 Or pulled from Docker Hub using the command $ docker pull ledgersmb/ledgersmb:1.10.31 These are the sha256 checksums of the uploaded files: 15920bbe05a6e37ee9f4d7fe408adb587a20ae0e8c052f20df1e2909b4c7bc51 ledgersmb-1.10.31.tar.gz e03aeecd9087bbc25673bd13ec78962509f3b265886bb0a44949bde311cb06bc ledgersmb-1.10.31.tar.gz.asc

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[SECURITY] Security advisory for CVE-2024-23831 (CSRF attack on setup.pl)
by Erik Huelsmann 02 Feb '24

02 Feb '24

On January 18 2024, the LedgerSMB project was advised of a security vulnerability in the code. Please see below our security advisory. Privilege escalation through CSRF attack on 'setup.pl' Summary: ======== When a LedgerSMB database administrator has an active session in /setup.pl, an attacker can trick the admin into clicking on a link which automatically submits a request to setup.pl without the admin's consent. This request can be used to create a new user account with full application (/login.pl) privileges, leading to privilege escalation. Known vulnerable: ================= All of: - 1.3.0 up to 1.3.47 (including) - 1.4.0 up to 1.4.42 (including) - 1.5.0 up to 1.5.30 (including) - 1.6.0 up to 1.6.33 (including) - 1.7.0 up to 1.7.32 (including) - 1.8.0 up to 1.8.31 (including) - 1.9.0 up to 1.9.30 (including) - 1.10.0 up to 1.10.29 (including) - 1.11.0 up to 1.11.8 (including) Known fixed: ============ - 1.10.30 - 1.11.9 Details: ======== CSRF is an attack that tricks the victim into submitting a malicious request. It inherits the identity and privileges of the victim to perform an undesired function on the victim’s behalf [^1]. To successfully perform the attack, an attacker needs to know the name of the database for which they want to create a user. That is: in case LedgerSMB is used to maintain multiple company administrations, multiple attacks need to be performed to gain access to all of them. A single attack will gain access to a single company only, however, if companies share users, the attacker can use those to gain access to the other companies with the rights of the affected user accounts. In this specific attack, the victim must be an administrator of /setup.pl with an active session. It should be noted that the resulting user does *not* have full access to /setup.pl, but *does* have full access to /login.pl for a single company. This means that the resulting user can therefore *not* be used to create database backups, however the attack itself can be used by the attacker to perform any action supported by setup.pl. [^1]: https://owasp.org/www-community/attacks/csrf Severity: ========= CVSSv3.1 Base Score: 7.5 (HIGH) CVSSv3.1 Vector: AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSSv3.1 Base Score & Vector (with temporal score): 6.7 (MEDIUM) CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:H/PR:N/… Recommendations: ================ We recommend all users to upgrade to known-fixed versions. Versions prior to 1.10 are end-of-life and will not receive security fixes from the LedgerSMB project. Users who cannot upgrade their 1.10 and 1.11 versions, may apply the included patches or are advised to contact a vendor for custom support. As a workaround, installations may choose not to expose and use /setup.pl, instead using the command line application "ledgersmb-admin" to perform administrative tasks. Password resets can be performed with regular /login.pl functionality or through PostgreSQL's "psql" command line tool. References: =========== CVE-2024-23831 (LedgerSMB) https://ledgersmb.org/cve-2024-23831-setup-csrf https://twelvesec.com/2024/02/02/cve-2024-23831 Reported by: ============ Georgios Roumeliotis (TwelveSec [twelvesec.com] -- Bye, Erik. http://efficito.com -- Hosted accounting and ERP. Robust and Flexible. No vendor lock-in.

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